From an ultimately Christian point of view Natasha is right to tell Pierre that Anatole is not a bad man.
Though it’s the last chapter of Book 8, everything is new. The comet, Pierre’s feelings, Natasha’s tears, and that renewed vigor is represented when Pierre, “despite twenty-two degrees of frost Fahrenheit he threw open the bearskin cloak from his broad chest and inhaled the air with joy”. LIFE! LOVE!